Refs #145 -- Vouchers that grant discounts

src/pretix/base/migrations/0048_auto_20161129_1330.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.3 on 2016-11-29 13:30
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0047_auto_20161126_1300'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='voucher',
+            name='price_mode',
+            field=models.CharField(choices=[('none', 'No effect'), ('set', 'Set product price to'), ('subtract', 'Subtract from product price'), ('percent', 'Reduce product price by (%)')], default='set', max_length=100, verbose_name='Price mode'),
+        ),
+        migrations.RenameField(
+            model_name='voucher',
+            old_name='price',
+            new_name='value',
+        ),
+        migrations.AlterField(
+            model_name='voucher',
+            name='value',
+            field=models.DecimalField(blank=True, decimal_places=2, max_digits=10, null=True, verbose_name='Voucher value'),
+        ),
+    ]